package HomeWork03;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            System.out.println(Data.getX(x) + Data.getY(y));
        }
    }


    class Data {

        private int x;
        private int y;

        public static int getX(int x) {
            return x;
        }

        public static int getY(int y) {
            return y;
        }
    }
}